102 lines
3.6 KiB
Python
102 lines
3.6 KiB
Python
"""
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This is a python image converter specific for the E-Paper-Calendar
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on github by aceisace from the link below.
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(https://github.com/aceisace/E-Paper-Calendar-with-iCal-sync-and-live-weather)
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It will convert the 3-colour .bmp's to 2-colour .bmp's so that they can be
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used even with the 2-Colour 7.5" E-Paper Display from waveshare.
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Please use with caution. If the input and output paths are the same, the
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convertr will overwrite all .bmp files. It's highly recommended to make a
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backup of the entire 'Calendar" folder first.
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Copyright by Ace-Laboratory
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"""
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"""
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Info: These paths contain the bmps that require converting.
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1) /home/pi/E-Paper-Master/Calendar/months/ + language
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3) /home/pi/E-Paper-Master/Calendar/other/ + language
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"""
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path = '/home/pi/E-Paper-Master/Calendar/'
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#--------------only change the following lines-----------------#
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input_path_1 = path+'other/de/'
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output_path_1 = path+'other/de/'
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input_path_2 = path+'months/de/'
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output_path_2 = path+'months/de/'
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input_path_3 = path+'other/en/'
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output_path_3 = path+'other/en/'
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input_path_4 = path+'months/en/'
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output_path_4 = path+'months/en/'
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#-----------------no need to change anything below-----------------#
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import glob, os, errno
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from PIL import Image
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import PIL.ImageOps
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imagenames_1 = []
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imagenames_2 = []
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imagenames_3 = []
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imagenames_4 = []
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print('opening the specified directory...')
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os.chdir(input_path_1) #folder containg files
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for files in glob.glob('*.bmp'): #find bmp files
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imagenames_1.append(files) #add these files to a list
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print('Found these files:', imagenames_1) #print this list
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os.chdir(input_path_2) #folder containg files
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for files in glob.glob('*.bmp'): #find bmp files
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imagenames_2.append(files) #add these files to a list
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print('Found these files:', imagenames_2) #print this list
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os.chdir(input_path_3) #folder containg files
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for files in glob.glob('*.bmp'): #find bmp files
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imagenames_3.append(files) #add these files to a list
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print('Found these files:', imagenames_3) #print this list
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os.chdir(input_path_4) #folder containg files
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for files in glob.glob('*.bmp'): #find bmp files
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imagenames_4.append(files) #add these files to a list
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print('Found these files:', imagenames_4) #print this list
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# 0 is black, 255 is white, 127 is red.
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# The following will convert the 'red' parts to white parts.
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thresh = 100 # any value below 127 works.
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fn = lambda x : 255 if x > thresh else 0
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try:
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print('checking if the first output path exists...')
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os.makedirs(output_path_1)
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except OSError as e:
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print('Oh, the first output path exists already. Assuming you know what you are doing.')
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print('Will attempt to overwrite all .bmp files')
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if e.errno != errno.EEXIST:
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raise
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try:
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print('checking if the second output path exists...')
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os.makedirs(output_path_2)
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except OSError as e:
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print('Oh, the second output path exists already. Assuming you know what you are doing.')
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print('Will attempt to overwrite all .bmp files')
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if e.errno != errno.EEXIST:
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raise
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print('attempting to convert images...')
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for files in imagenames_1:
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((Image.open(input_path_1+files)).convert('L').point(fn, mode='1').save(output_path_1+files))
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for files in imagenames_2:
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((Image.open(input_path_2+files)).convert('L').point(fn, mode='1').save(output_path_2+files))
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for files in imagenames_3:
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((Image.open(input_path_3+files)).convert('L').point(fn, mode='1').save(output_path_3+files))
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for files in imagenames_4:
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((Image.open(input_path_4+files)).convert('L').point(fn, mode='1').save(output_path_4+files))
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print('All done!')
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print('The bmp have been converted. Good luck!')
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